CVE-2026-4164: Wavlink Wl-WN578W2

Critical severity, CVSS 9.8. EPSS: 3.6% chance of exploitation in the next 30 days.

A flaw has been found in Wavlink WL-WN578W2 221110. Impacted is the function Delete_Mac_list/SetName/GuestWifi of the file /cgi-bin/wireless.cgi of the component POST Request Handler. Executing a manipulation can lead to command injection. It is possible to launch the attack remotely. The exploit has been published and may be used. It is recommended to upgrade the affected component.

Affected products

• Wavlink Wl-WN578W2: version 221110 only

Published 2026-03-16. Last modified 2026-06-17.